Juergen Gross 2f69a110e7 xen/xenbus: fix locking ...

Commit 060eabe8fbe726 ("xenbus/backend: Protect xenbus callback with
lock") introduced a bug by holding a lock while calling a function
which might schedule.

Fix that by using a semaphore instead.

Fixes: 060eabe8fbe726 ("xenbus/backend: Protect xenbus callback with lock")
Signed-off-by: Juergen Gross <jgross@suse.com>
Link: https://lore.kernel.org/r/20200305100323.16736-1-jgross@suse.com
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>

2020-03-05 09:42:23 -06:00

..

arm

swiotlb-xen: simplify cache maintainance

2019-09-11 12:43:27 +02:00

interface

xen: Replace zero-length array with flexible-array member

2020-03-05 09:41:58 -06:00

acpi.h

xen / ACPI: notify xen when reduced hardware sleep is available

2013-07-31 14:22:35 +02:00

balloon.h

xen: remove tmem driver

2019-07-17 08:09:58 +02:00

events.h

xen/events: fix binding user event channels to cpus

2019-07-17 08:09:57 +02:00

features.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

grant_table.h

xen/grant-table: Allow allocating buffers suitable for DMA

2018-07-26 23:05:14 -04:00

hvc-console.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

hvm.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

mem-reservation.h

xen/balloon: add runtime control for scrubbing ballooned out pages

2018-09-14 08:51:10 -04:00

page.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

platform_pci.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

swiotlb-xen.h

dma-mapping: drop the dev argument to arch_sync_dma_for_*

2019-11-20 20:31:38 +01:00

xen-front-pgdir-shbuf.h

xen: Introduce shared buffer helpers for page directory...

2018-12-18 12:15:55 -05:00

xen-ops.h

sched/rt, xen: Use CONFIG_PREEMPTION

2019-12-08 14:37:36 +01:00

xen.h

block: pass page to xen_biovec_phys_mergeable

2019-04-01 12:11:13 -06:00

xenbus_dev.h

xenbus: Add support for xenbus backend in stub domain

2012-05-21 09:53:18 -04:00

xenbus.h

xen/xenbus: fix locking

2020-03-05 09:42:23 -06:00